Multiple Choice
Which polysaccharide is an important component in the structure of lobsters and insects?
a) Chitin.
b) Cellulose.
c) Starch.
d) Glycogen.
e) Polypeptides.
4. Biomolecules
Carbohydrates
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At a conference, the speaker's grand finale was sautéing mealworms (insect larvae) in butter and serving them to the audience. They were crunchy (like popcorn hulls) because their exoskeletons contain the polysaccharide __________.
A
collagen
B
cellulose
C
palmitic acid
D
glycogen
E
chitin
Verified step by step guidance1
Understand the context: The problem is about identifying the polysaccharide that makes insect larvae crunchy due to their exoskeletons.
Recall the structure of insect exoskeletons: Insects have a hard outer shell called an exoskeleton, which provides protection and support.
Identify the composition of the exoskeleton: The exoskeleton is primarily composed of chitin, a polysaccharide that is known for its toughness and flexibility.
Differentiate chitin from other options: Chitin is distinct from collagen (a protein), cellulose (a plant polysaccharide), palmitic acid (a fatty acid), and glycogen (an animal storage polysaccharide).
Conclude that chitin is the correct answer: Based on the properties of chitin and its role in the exoskeleton, it is the polysaccharide responsible for the crunchiness of the mealworms.
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